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Thursday, November 20, 2014 1:30 pm - 1:30 pm EST (GMT -05:00)

Number Theory seminar

Lassina Dembele, University of Warwick

“Supercuspidal types and the Jacquet-Langlands correspondence for GL2

In this talk, we revisit the Jacquet-Langlands correspondence for GL2. We restate this correspondence using the notion of supercuspidal types.

Thursday, November 20, 2014 4:30 pm - 4:30 pm EST (GMT -05:00)

Student colloquium

Boyu Li, Department of Pure Mathematics, University of Waterloo

“Asymptotic Distributions of Noncrossing Partitions”

A noncrossing partition is a partition that has no crossing. It plays an important role in recent study of free probability.

Friday, November 21, 2014 1:00 pm - 1:00 pm EST (GMT -05:00)

Geometry working seminar

Robert Garbary, Department of Pure Mathematics, University of Waterloo

“Separated and Proper Maps”

In the study of any kind of spaces, compact Hausdorff spaces play a very important role. Unfortunately, these concepts don’t really make sense for varieties (or schemes) because the Zariski topology is really stupid.

Friday, November 21, 2014 2:30 pm - 2:30 pm EST (GMT -05:00)

Analysis seminar

Jingbo Xia, SUNY Buffalo

“Hankel operators in Lorentz ideals”

Recall that the Lorentz ideal Cpis the collection of operators A satisfying the condition A

Friday, November 21, 2014 2:30 pm - 2:30 pm EST (GMT -05:00)

Geometry & Topology seminar

Savdeep Sethi, University of Chicago

“Triples, Instantons and Domain Walls”

The vacuum structure of gauge theory on tori is surprisingly rich. For certain gauge groups, there exist disconnected components in the space of flat connections, which can be used to build novel topologically non-trivial gauge-field configurations.

Friday, November 21, 2014 4:00 pm - 4:00 pm EST (GMT -05:00)

Special colloquium

Xiaoheng Jerry Wang, Princeton University

“Rational points on hyperelliptic curves”

Finding integral and rational solutions to polynomial equations with integer coefficients has always been a fascinating subject to mathematicians.
Monday, November 24, 2014 4:00 pm - 4:00 pm EST (GMT -05:00)

Special Colloquium

Paul Skoufranis, Texas A&M University

“Free Probability for Pairs of Faces”

Free probability is a non-commutative probability theory that arises by examining the joint mo- ments of operators acting on the left-hand side of reduced free product spaces.

Tuesday, November 25, 2014 1:00 pm - 1:00 pm EST (GMT -05:00)

Geometry working seminar

Spiro Karigiannis, Pure Mathematics Department, University of Waterloo

“Calibrations, Instantons, and Branes: Part II”

We will continue our discussion of the approach to calibrated geometry of Leung-Lee in the language of instantons and branes on manifolds with vector cross product.

Wednesday, November 26, 2014 2:30 pm - 2:30 pm EST (GMT -05:00)

Algebra seminar

Alexander Berenbeim, Department of Pure Mathematics, University of Waterloo

“What Is Equivalence?: An Introduction to weak ω-groupoids”

Higher category theory and higher groupoids are intimately connected, and at a minimum, the importance of this point of view is that n-categories allow us to avoid mistaking isomorphism f

Friday, November 28, 2014 1:00 pm - 1:00 pm EST (GMT -05:00)

Geometry working seminar

Alan Thompson, Department of Pure Mathematics, University of Waterloo

“Yet more separatedness, and an introduction to projective schemes”

In this talk, I intend to begin by putting the final nail in the coffin of our prolonged discussion of separatedness.